594 WSUS31 KKCI 182055 SIGE MKCE WST 182055 CONVECTIVE SIGMET 19E VALID UNTIL 2255Z FL AND CSTL WTRS FROM 20N PBI-60E PBI-120SSE MIA-40SSW EYW-20N PBI AREA TS MOV FROM 22040KT. TOPS TO FL390. OUTLOOK VALID 182255-190255 FROM 160NE TRV-150SE MIA-80WSW EYW-80W EYW-RSW-160NE TRV WST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.